Window-cleaning apparatus.



R. R. BRUCKNER (5L L. BEMELMANS.

WINDOW CLEANING APPARATUS.

APPLICATlON FILED ocr. 20. I917.

Patented Dec. 31, 1918.

IN l/EIV T085 messes.

' RICHARD-B. imuommn AND amrsnr snmntmans, or NEW YORK, IN. 1.

.WINDOW-GLEANING AI'PARATUS.

To all whom it may concern Be it known that we, RICHARD R. BRUCE- NER, a subject of the German Emperor, and LAMPEnr 'BEMELMANs, a citizen United States, both residents of the city of New York, borough of Manhattan, in the county and State of New York, have inance with the present inven the cars 13, the perforated foot Fig. 4 of the of the window pane 17.

vented a new and Improved Window-Cleanifililg Apparatus, of which the following is a 1, clear, and exact description, Among the principal objects which the present invention has in view are: to lessen the labor in cleaning windows; to avoid the necessity of the washer assuming a position outside the window being washed; to provide means for removing t corners of the windows; to provide means for automatically regulating the pressure on the window panes; and to provide mea s for rapidly securing the washmg element the apparatus.

Drawings.

Figure 1 is a side view of a cleaning apparatus constructed and arranged in accordion, -the appa-' ratus being shown in conjunction with and in operative relation to a window sash;

Fig. 2 is an edge view of the cleaner;

Fig. 3 is a side view of the same;

Fig. 4 is a longitudinal section on an enlarged scale of the mop holder with which the invention is provided, the section being taken as on the line 4-4; in Fig. 2;

- Fig. 5 is a side view of the apparatus, showm the same as'inactively disposed or ready or storage.

Description.

As seen in the drawings, the apparatus has two mop holding frames, eachframe consisting of a sheet iron triangular back 10. As seen best in Figs. 2 and-4 of the drawings, flanges 11 extend on each side of the triangular back. The ba k 10 is provided with hinge ears 12, through which in service a cotter pin '13 is passed. Between 14 is placed. The foot 14, as seen best in drawin has a curved under surface termi nating in a toe 15. This arrangement per mits the mop frame to rock on the cotter pin 13, so that the movement of the resilient bow arm 16 neither jams nor relieves the pressure between the pad and the surface of the flanges 11.

e soil in the I I Specification of Letters Patent. Patented Dec, 31, 1918, Application aiea October 20', 1917. serial seismic.

knuckle 18 is formed integral with the frame 10.; Theknuckle 18 is provided to pivot the spring frame 19,; which holds the rubbing cloth or pad 20 *on the frame 10. The frame 19 is contractible, the two sides being each provided with upstanding tips 21. When. the tips 21 are pressed together, the body of the frame 19 is at liberty to pass within the contracted upper edges of the flanges 11. -When the tips 21 are released, the frame 19 if adjacent the body of the back 10, springs under the overhanging If the edge of the rubbing cloth 20-be arranged to overlie the flanges 11, the frame will press the same under the said flanges, with the result that the cloth is held firmly in position.

One of thebacks 10 is secured to the arm 16. The other of the backs is similarly secured to a rocking arm 22. The arm 22 has a hand-grip 23 and is pivotally connected by means of a pin 24 with the bow arm 16.

It will be understood that the cloth 20 may be adjusted or removed from the back 10 either wh'le the back is attached to the arm Y 16 or 22, or when it is removed therefrom.

the operator then moves the grip 23 and arm' 22, until the two cloths or pads close on the said pane. In this position, the grip 23 stands slightly away from the bow arm 16. By contracting the hand enfolding the grip 23 andadjacent portion of the arm 16, the cloths 20 are forced firmlv into contact with the opposites'urfaces of the pane 17.

It is obvious that when full pressure required to draw the grip 23 and arm 16 together, has been applied, the maximum pressure imposed upon the cloths 20 equals the spring of the arm 16.

aving thus adjusted the cloths and supporting structure therefor, the operator passes the cloths over the pane 17, both cloths operating at opposite sides of the pane simultaneously. It will be observed that the back 10 being triangular in shape,

When it becomes necessary to renew or change the cloths 20, this may be done by releasing the grip 23 to rock the short arm 22 and separate the cloths 20 from the pane 17. The apparatus is then removed from operative relation to the ane 17, the frames 19 are contracted and llfted out of engagement with the cloths 20 and the flanges 11 of the backs 10. The old cloths may then be removed and new ones substituted.

' Ulaim. I An apparatus as characterized comprising a plurality of mop ho1ders; a resilient 1,aee,eee

bow handle pivotally'suppo'rting one of saidmo'p holders, said bow handle having relatively long and short extensions; a short arm complementary to the short extension of said bow handle, the combined length of said short arm and short extension being equal to the long extension of said bow handle, said arm being pivotally connected with one ofsaid holders; and a hand grip rigidly attached to I said short arm and pivotally at tached to said short'extension, said grip being channeled to receive the adjacent por tions of said short extension and short arm to connect the same whereby the ends ofsaid long extension and said short arm may be pressed together manually. RICHARD R. BRUOKNER.

LAMPEQRT v BEMELMANS. 

